<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../lib/jquery.js"></script>
    <script src="./dis.js"></script>
</head>

<body>

    username <input type="text" name="" id="username">
    password <input type="password" name="" id="password">

    <button type="button" id="sub">注册</button>
</body>

</html>